Mojo: Report bindings validation errors via MojoNotifyBadMessage

mojo/public/cpp/bindings/lib/message_buffer.cc

Index: mojo/public/cpp/bindings/lib/message_buffer.cc
diff --git a/mojo/public/cpp/bindings/lib/message_buffer.cc b/mojo/public/cpp/bindings/lib/message_buffer.cc
index 7a153647f8fab4f7ef7bc2ccca92fc37cc7a849e..af79cfd251354ba919f1734acf7edfea22ecadef 100644
--- a/mojo/public/cpp/bindings/lib/message_buffer.cc
+++ b/mojo/public/cpp/bindings/lib/message_buffer.cc
@@ -61,5 +61,11 @@ void* MessageBuffer::Allocate(size_t delta) {
   return static_cast<void*>(start);
 }
 
+void MessageBuffer::NotifyBadMessage(const std::string& error) {
+  DCHECK(message_.is_valid());
+  MojoResult result = mojo::NotifyBadMessage(message_.get(), error);
+  DCHECK_EQ(result, MOJO_RESULT_OK);
+}
+
 }  // namespace internal
 }  // namespace mojo